First Draft
“ELENA is a new facility aimed to deliver antiprotons at the lowest energies ever reached in order to improve the study of antimatter,” said CERN’s Stéphan Maury, Head of the ELENA project.
In 1955, antiprotons were discovered at the University of California. In 1955, Elena Jakorowski was born in Poland.
Rain always falls in the same direction. This is a given fact of our corporeal existence. The most trivial experiment leads to the conclusion that it always falls in the same direction. It begins above and ends below, splashing at our feet and forming a mass. All those individual, unique (I like to think of them as unique, despite evidence of homogeneity) pear-shaped missiles falling around us. It’s just the way the universe is.

The red blocks measured in the experiment's caesium iodide calorimeter indicate photons from the positron annihilation. The yellow lines correspond to charged particles from the antiproton annihilation. These are detected by silicon detectors (pink) and the calorimeter (yellow blocks).
Sometimes, if I’m walking in a downpour on my way home, I stop. I just stand there, wherever the fancy takes me. Being a good scientist doesn’t always mean observing social protocols — otherwise we’d never achieve anything, don’t you think? Oh, don’t get me wrong, I don’t just stop. I’m not a bloody idiot. You have to gradually decelerate and reduce your energy levels. Otherwise all sorts of random things can occur.
An extracted beam of 1.5*1013 protons at 26 GeV/c is produced in 5 pulses with a total duration of 500 nsec
A by-product of my experiments is that I also get to observe some of the people around me. I know what an odd figure I appear to be, with my cream raincoat and bulging bag full of papers, laptop, lunch box and newspaper and most probably, an uneaten banana. Standing in the rain, even not moving, changes the outcome of the experiment. Any cat knows that.
Once, an old lady was going by on a bicycle. I forget the model now, but I’ll try to find out next time I see her. She had her head down trying mightily to ignore the rain (as though ignorance ever got rid of anything!) And, although I’m sure this is a cliché of romance novels, she seemed to have a glow about her and something inviting in her eyes. Did she have a scarf flowing behind her and hair whipping about in the slipstream wind from a passing lorry? My memory is vague now. I’ll find out next time I see her.
Don’t mistake my calling her an old lady for youthful arrogance, I’m sixty-four years old.
The AC machine is modified to become a decelerator (AD)
I don’t think it’s that important to change your name when you get married. Especially if you’ve had the same name all your life. Your face and your name are how you define yourself, more than anything else. My name has always been Michael Hawkins and I’ve always had a small knife scar along my right cheek from a youthful prank. Her name has always been Elena Jakorowski and she’s always had a thin, deep line of gnarled scar tissue across her back. That’s who we’ve always been.
Everything changes.
Decelerating the antiproton beam from the Momentum of 3.57 GeV/c to 100 MeV/c
If forced to make a comment on the nature of relationships, I’d say that it would be impossible at this point in the experiment to agree any solid facts. I can tell you how it’s going and what the problems encountered are, but I haven’t formulated a definite outcome. Elena hated it when I spoke like this, making everything sound like ONE OF MY DAMN PAPERS FOR NATURE JOURNAL. VOLUME 15.
Elena says her whole life changed when she met me. Not as a direct result of our meeting, at least not physically. Definitely emotionally, but not physically. That dye had already been cast many years before.
During deceleration, the beam is cooled with stochastic and electron cooling
Shit happens. Or rather more elegantly, entropy happens. Entropy as defined within a closed system means that an outcome can always be calculated: given a known data set, known variables and starting points. Perhaps that’s why we have no idea what path our lives will take? We have no idea which closed system we’re actually part of and therefore what the data set is.
Standing watching rain fall with a cyclist passing while a pedestrian bumps into me and knocks my bag from my shoulder. Can all of the different factors be accounted for and recorded?
Don’t think that this is the first time I’ve tried to tell this story and it may not be the last. It’s just part of a sequence. The thing is, I keep recalling different elements. Last time I wrote down my notes, I couldn’t recall that Elena’s hair was whipping around. Next time I write this down, I will recall that we had already met at a conference five years earlier. We’d even shared a drink and meal (albeit with seven others at the table). The data set keeps changing.
The vacuum is a factor 20 better than AC , multiple scattering on residual gas molecules causes emittance blow-up at low momenta
Elena worked in a laboratory handling radioactive materials as part of experiments developing antidotes to radiation spills.
Sometimes when we’ve had an argument: I’D BE BETTER OFF IF I STILL LIVED ON MY OWN! Both of us have used this particular piece of vitriol at times. It’s a nice jagged hack and slash of the harmony of combined habitation. Or put less elegantly, it really fucks things up for weeks at a time.
All power converters have to be modified to have a better current stability at Low Momenta
Elena spends a lot of nights coughing and shows me the tiny specks of red that ruin the pretty white elegance of her tissues. On those nights, we just sit up in bed and I talk to her about some of the places I’ve traveled to. Having come from Poland to my country during her late teens, she chose not to travel the rest of her life. She doesn’t say too much about those years, but hints at something that happened to her around 1967. I don’t press for more information, just comfort her by rubbing her back. The ridge of tissue rides my fingers up and across her otherwise smooth, tanned skin.
There will be a new control system, compatible with the rest of the PS control system
A doctor prescribes some drugs that have just been approved by the government. They alter the structure of something or other at a molecular level, forcing her immune system to focus on attacking the growth.
The beam is Fast Extracted and sent to the experiments in a new area in the Centre of the ring
Five weeks pass one second at a time. Immune systems alter and perform fresh maneuvers. A battle isn’t a war.
The access to the experiments will be possible at all times during Antiproton Operation
It’s midnight and I call up the doctor and shout at him. Elena has been sick again and unable to eat anything for a few days now. I use a shouting voice that she’s taught me and abuse him for a full ten minutes before he calmly tells me to meet him at his surgery in half an hour.
The foreseen extracted beam intensity is about 1.2 107 pbars in a pulse of 200 to 500 nanoseconds , repeated once per minute
I still go to work and try to focus on the experiments I’ve set up over the past four years. There’s a problem with the magnets and we’re struggling to get funding for a backup power generator. I’m at work most days for about three hours before she calls me. She doesn’t complain or demand my presence, just wants advice and to hear my voice. Still, I can’t sit here at my desk and eat my salad knowing that she’s at home, in pain. I leave Post-its stuck to machines all over the lab for my PhD students and technicians.
Protons for setting-up will be available in the Reverse Direction (PS > TT2 > TTL2 > 8000 > 7000 > machine > 6000)
Elena spends more time on the settee than the bed. We agree it’s a good compromise between being in bed and up and watching television. It’s a halfway process.
“When I was a little girl, in Poland, my parents used to sit me in the lounge and read to me. Mother couldn’t get hold of any fiction so she used to read text books that Father had taken from the local school.”
Didn’t the schoolchildren need them?
“I was the only child in the neighbourhood.”
And of course, the text-books were all science ones.
AD is running during 6 months per year Monday morning to Friday evening 24h/24.
Eventually, Elena completely decelerated. Yes, I know that isn’t a very romantic or human way of putting it. FUCK YOU, THIS IS MY LIFE AND I’LL DO WHATEVER I WANT WITH IT. In my best Elena voice.
I’ve tried standing in the rain, repeating the experiment, watching the rain go in the same direction. Sometimes you have to repeat parts of an experiment to confirm that you carried it out correctly. Or to note any elements that were different from the first time. Those are important variables.
When raindrops completely decelerate, they become part of the mass of water beneath our feet. The raindrops are still there, they’ve just become something else.
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Titles taken from: http://psdoc.web.cern.ch/PSdoc/acc/ad/index.html Introduction section.