Oct.-December: The X-ray spectrometer, designed for observation of nonlinear Compton scattering, consists of a Silicon/Molybdenum (Si/Mo) multilayer crystal, and a two-dimensional position sensitive detector.

March 12, 1999: Installation of US-Japan collaboration Compton scattering experiment started in the ATF beamline #1.

March 19, 1999: The first installation of US-Japan collaboration Compton scattering experiment in beamline #1 was completed in two days.

March 26, 1999: The Compton experiment ran two days, Tuesday and Friday.

May 21, 1999: With the arrival of Shigeru Kashiwagi we started preparations to the next run of the Compton scattering experiment.

May 28, 1999: We measured the number of generated electron hole pairs in the silicon diode using a 670nm, 10ns laser pulses.

August 6, 1999: We tried to observe the CO2 spot on the VOx target at the test bench and we succeeded to make a spot on the target using not-coaxial beam.

August 20, 1999: We performed the calibration of our silicon diode x-ray detector at the National Synchrotron Light Source (beam line X13B).

September 10, 1999: Compton experiment finished one-week installation and had the first productive run on Wednesday, September 8, 1999.

September 17, 1999: The 3-day Compton run planned for this week was shortened to cumulative two full days due to hurricane Floyd (BNL was closed at 3 p.m. on Thursday) and morning and afternoon meetings on Friday.

October 1, 1999: Precise measurements of the electron and laser beam sizes in the interaction region in order to make comparisons with the theoretical predictions on the produced x-ray photons.